package com.itheima.attention;

public class Test {
    public static void main(String[] args) {
        int[] arr = {11, 22, 33};
        System.out.println(arr[0]);
        System.out.println(arr[1]);
        System.out.println(arr[2]);
        // System.out.println(arr[3]); // 出现异常

        arr = null;
        System.out.println(arr);
        // System.out.println(arr[0]);

        System.out.println("程序结束。。。");
    }
}
